News tagged with atomic arrangement
Physicists show standard 'quasiparticle' theory breaks down at 'quantum critical point'
A new study this week finds that "quantum critical points" in exotic electronic materials can act much like polarizing "hot button issues" in an election. Reporting in Nature, researchers from Rice Univer ...
Apr 25, 2012 |
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Shaken, not heated: The ideal recipe for manipulating magnetism
(PhysOrg.com) -- Scientists have found a way to distort the atomic arrangement and change the magnetic properties of an important class of electronic materials with ultra-short pulses of terahertz (mid-infrared) ...
Feb 01, 2012 |
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Quasicrystal is extraterrestrial in origin
A rare and exotic mineral, so unusual that it was thought impossible to exist, came to Earth on a meteorite, according to an international team of researchers led by Princeton University scientists. The discovery ...
Space & Earth / Space Exploration
Jan 13, 2012 |
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Bismuth-based semiconducting material could enable control of electron spin
In the developing field of spintronics, physicists are designing devices to transmit data using the inherent axial rotation, or spin, of electrons rather than their charge as is used in electronics. Weak coupling ...
Oct 14, 2011 |
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Paper announces discovery of one of earliest minerals formed in solar system
In the May-June issue of the journal American Mineralogist, a team of scientists announced the discovery of the new mineral krotite, one of the earliest minerals formed in our solar system. It is the main component of an ...
Space & Earth / Space Exploration
May 06, 2011 |
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Cerium's unusual behaviour
(PhysOrg.com) -- Livermore researchers have found that a crystal of cerium -- the chemical element that can be used for catalysts and fuel additives -- behaves in very unique ways when subjected to high pressures.
Jan 27, 2011 |
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Structural distortions emerge from nothing at the nanoscale
Scientists have discovered that a class of materials known to convert heat to electricity and vice versa behaves quite unexpectedly at the nanoscale in response to changes in temperature. The discovery - described ...
Dec 16, 2010 |
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Nanospheres made of aromatic amino acids: The most rigid organic nanostructures to date
(PhysOrg.com) -- Organic nanostructures are key elements of nanotechnology because these building blocks can be made with tailored chemical properties. Their disadvantage has been that their mechanical properties ...
Nanotechnology / Nanomaterials
Sep 30, 2010 |
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A closer look at ring opening: Electron diffraction studies of photoswitchable molecules
(PhysOrg.com) -- We use a switch to turn lights off and on; however, light can also act as a switch itself, for example when molecules change their structure upon irradiation. Photoswitchable molecules are ...
Chemistry / Analytical Chemistry
Sep 09, 2010 |
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Opportunities at light source and neutron facilities
New intense sources of radiation at national facilities in Chicago, New York, and Tennessee coupled with the next generation of sensitive detectors are allowing geochemists like John Parise to gather images and data on minerals ...
Jun 15, 2010 |
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Sharp Develops Solar Cell with World's Highest Conversion Efficiency of 35.8%
Sharp Corporation has achieved the world's highest solar cell conversion efficiency (for non-concentrator solar cells) of 35.8% using a triple-junction compound solar cell.
Technology / Energy & Green Tech
Oct 22, 2009 |
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Simultaneous Nanoscale Imaging of Surface and Bulk Atoms
(PhysOrg.com) -- Brookhaven Lab scientists have developed a new scanning electron microscope capable of selectively imaging single atoms on a surface while simultaneously probing atoms throughout the sample?s ...
Sep 21, 2009 |
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